glib-mkenums(1)

NAME

       glib-mkenums - C language enum description generation utility

SYNOPSIS

       glib-mkenums [options] [files...]

DESCRIPTION

       glib-mkenums  is  a  small  perl-script  utility  that parses C code to
       extract enum definitions and produces enum descriptions based  on  text
       templates specified by the user. Most frequently this script is used to
       produce C code that contains enum values as  strings  so  programs  can
       provide value name strings for introspection.

INVOCATION

       glib-mkenums  takes  a list of valid C code files as input. The options
       specified control the text that is output,  certain  substitutions  are
       performed  on the text templates for keywords enclosed in @ characters.

   Options
       --fhead <text>
              Put out <text> prior to processing input files.

       --fprod <text>
              Put out <text> everytime a new input file is being processed.

       --ftail <text>
              Put out <text> after all input files have been processed.

       --eprod <text>
              Put out <text> everytime an enum is  encountered  in  the  input
              files.

       --vhead <text>
              Put  out  <text>  before  iterating over the set of values of an
              enum.

       --vprod <text>
              Put out <text> for every value of an enum.

       --vtail <text>
              Put out <text> after iterating over all values of an enum.

       --comments <text>
              Template for auto-generated comments, the default  (for  C  code
              generations) is "/* @comment@ */".

       --template file
              Read  templates  from the given file. The templates are enclosed
              in specially-formatted C comments

              /*** BEGIN section ***/
              /*** END section ***/

              where section may be  file-header,  file-production,  file-tail,
              enumeration-production,  value-header,  value-production, value-
              tail or comment.

              -h, --help
                     Print brief help and exit.

              -v, --version
                     Print version and exit.

   Production text substitutions
       Certain keywords enclosed in @ characters will be  substituted  in  the
       outputted  text.  For  the substitution examples of the keywords below,
       the following example enum definition is assumed:

              typedef enum
              {
                PREFIX_THE_XVALUE    = 1 << 3,
                PREFIX_ANOTHER_VALUE = 1 << 4
              } PrefixTheXEnum;

       @EnumName@  The name of the enum currently being processed, enum  names
                   are assumed to be properly namespaced and to use mixed cap-
                   italization to separate words (e.g. PrefixTheXEnum).

       @enum_name@ The enum name with words lowercase  and  word-separated  by
                   underscores (e.g. prefix_the_xenum).

       @ENUMNAME@  The  enum  name  with words uppercase and word-separated by
                   underscores (e.g. PREFIX_THE_XENUM).

       @ENUMSHORT@ The enum name with words uppercase  and  word-separated  by
                   underscores, prefix stripped (e.g. THE_XENUM).

       @VALUENAME@ The  enum  value  name currently being processed with words
                   uppercase and word-separated by underscores,  this  is  the
                   assumed  literal  notation  of enum values in the C sources
                   (e.g. PREFIX_THE_XVALUE).

       @valuenick@ A nick name for the enum value currently  being  processed,
                   this  is usually generated by stripping common prefix words
                   of all the enum values of the current enum, the  words  are
                   lowercase  and underscores are substituted by a minus (e.g.
                   the-xvalue).

       @type@      This is substituted either by "enum" or "flags",  depending
                   on  whether  the enum value definitions contained bit-shift
                   operators or not (e.g. flags).

       @Type@      The same as @type@ with the first letter capitalized  (e.g.
                   Flags).

       @TYPE@      The  same  as  @type@  with  all  letters  uppercased (e.g.
                   FLAGS).

       @filename@  The name of the input file currently being processed  (e.g.
                   foo.h).

   Trigraph extensions
       Some  C  comments are treated specially in the parsed enum definitions,
       such comments start out with the trigraph sequence "/*<" and  end  with
       the  trigraph  sequence ">*/".  Per enum definition, the options "skip"
       and "flags" can be specified, to indicate this enum  definition  to  be
       skipped,  or  for it to be treated as a flags definition, or to specify
       the common prefix to be stripped from  all  values  to  generate  value
       nicknames,  respectively.  Per value definition, the options "skip" and
       "nick" are supported. The former causes the value to  be  skipped,  and
       the  latter  can  be used to specify the otherwise auto-generated nick-
       name.  Examples:

              typedef enum /*< skip >*/
              {
                PREFIX_FOO
              } PrefixThisEnumWillBeSkipped;
              typedef enum /*< flags,prefix=PREFIX >*/
              {
                PREFIX_THE_ZEROTH_VALUE,    /*< skip >*/
                PREFIX_THE_FIRST_VALUE,
                PREFIX_THE_SECOND_VALUE,
                PREFIX_THE_THIRD_VALUE,     /*< nick=the-last-value >*/
              } PrefixTheFlagsEnum;

SEE ALSO

        glib-genmarshal(1)

BUGS

       None known yet.

AUTHOR

       glib-mkenums was written by Tim Janik <timj@gtk.org>  and  Owen  Taylor
       <otaylor@redhat.com>.

       This manual page was provided by Tim Janik <timj@gtk.org>.

                                  27 Jul 2002                  GLIB-MKENUMS(1)